Whistle, siren, or the like.



L. A.- DELPEUGH. WHISTLE, SIREN, OR THE LIKE. APPLICATION FILED SEPT. 19, 1907.

Patented May 10, 1910.

moat ANTOINE DELPEUOH, or .NEUILIiY-SUB-SEINE, rniincn ernnnivmnrsrnn, or PARIS, FRANCE.

wHIsr'LE, srman, on THE LIKE.

(To all whom it mag concern:

. Be it known that I, LEON ANTOINE DEL- rnUcH, a citizen of the Republic of France, andlresident of Neuilly-sur-Seine, France,

have invented certain new and useful Imcars, boats or other apparatus provided with petrol, steam or compressed air engines.

The Ob]( i3 of the invention is to provide a whistle, the characteristic features ofwhich will be hereinafter described, to advantagcously replace any existing kind of horn or siren and which may be heard from a considerable distance, while'owing to the construction of the same, sounds are emitted which can be varied bythe operator as desired.

1 A form of construction of the whistle ac cording to this invention is illustrated in the accompanying drawing in which F igure 1 1s a vertical longitudinal section through the axis of the whistle. Fig. 2 is a vertical crosssection on the line A-A of Fig. 1. Fig. 3 is a general view showing the arrangement of the whistle as applied to a petrol driven motor vehicle.

The whistle comprises a tube 0/. (Figs. 1 and 2) connected at one of its ends to the exhaust pipe I) of the muflier c (Fig. 3). The other end of the tube a is provided with a screw cap d (Fig.1) through which the rod e of the piston. slides, the said piston moving in the interior of the said tube so as to close or open a number of openings g. A spring on is arranged between the piston f and the screw capwl.

In the interior of the tube a is arranged a triangular pyramid 71, the angles of which are rounded ofi to suit the inner curvature of the tube, so that three openings c (Fig. 2) are formed through which the compressed gases escape from the muffler c.

Obviously the described apparatus constituted by the pyramid h, tube a and its orifices g, forms a high pressure whistle. The piston f sliding in the tube a forms a resonance chamber the size of which is adjust,- able and emits a'varying sound according as the piston is moved away from, or brought nearer to, the pyramid, so that the sounds of the Whistle are variable.

Specification ofletters Patent. Application filed September-19, 1907. Serial No. 393,632.

retested May to, rate.

A hand lever j as shown in Fig. 3, enables the rod 9 of the piston f to be operated in order to open both the orifices g and at the same time. By the same movement, by;

means of a rod is (Fig. 3), the open endof the exhaust pipe Z) is closed by means of cap. Z, so that the gases are forced to pass through the whistle.

In order to cause the whistle to cease, the

lever y is brought back into its first position, the result being the closing of the orifices g and '2 by the piston which is brought back by the action of the spring at which latter, resting against the cap (2, has thetendency of always bringing the piston 7* back. At the same time, owing to a spring a, the cap Z opens the exhaust pipe 6, The gases then follow their normal ing the whistle.

The springs n and n are of such relative strength that when the piston f is in the po sition to close the orificesg and 2', thus preventing the passage' of the gases therethrough, the spring 12. will lift cap l off from its seat and thereby permit the escapementof the gases. hen, however, the lever j is operated the tensioning of the spring a will exact a greater force than the spring n and, therefore, cause the cap to be tightly seated on the pipe or channel 6.

I have described one embodiment of my invention, but it is clear changes may be made therein without departing from the spirit of the same; nor do I wish to limit myself to the use of the device described solely to automobiles since such a device has path without influencother modes of application.

Claim.

1. The combination with a whistle com prising a piston-tube closed at one end and provided with outlet-orifices, a fixed pyramid in said tube, said pyramid being cut awn to provide passages between its ed e andihe wall of said tube adjacent to said outlet-orifices and a spring-actuated piston in said piston-tube adapted to normally close said openings and orifices, of means for operating said piston, an exhaust-pine, a branch exhaust-pipe connected with the opposite end of the piston-tube, means for closing the exhaust-pipe, and a spring-actuated lever mechanism connecting said closing means with the operating means of the piston. w

2. In a motor-vehicle, a whistle having a Assrenou r0 Aueus'rn an exhaust-pipe extending downwardly into piston-tube having. orifices and extending longitudinally of the frame of the vehicle communication with the rear-end of the whistle' and then extending rearwardly, .acap adaptedto close the'rear-end of the ex- I ten ing to move said piston Irearwardly, a

hand-lever pivoted to said frame and extending below thesame, a piston-rod connecting the lower end of said hand-lever to said piston, and rr'esilient means connecting toget er intermediatepoints of both of-said levers. 1 3. In a motor-vehicle, a piston-tubeextending longitudinally of" the frame of the vehicle, an exhaust-pipefextending down-.

wardly in communication :w ith the rear-end of the piston-tube and then extending rearwardly, a rearwardly-pointing pyramid fitting in said piston-tube and cut away at its edges to form-orifices, said piston-tube being .said eap-carryin also provided with orifices. adjacent to said first-named qrlfi'ces, a hand-lever pivoted to and extendin above and below said frame,

a piston. aslilable in said piston-tube and adapted when in its rearmost position to close and cover all of said orifices, a screwcap closin the forward end of the pistontube and aving a central perforation, a piston-rod connected to the lower .end of said hand-lever and passing through said central perforation and secured to said piston, a helical spring between said screwcap and piston and surrounding said piston rod, a cap-carrying lever pivotedto said frame, a cap carried on the lowerend of lever and adapted to close the rear-end of t e exhaust-pipe, a cap-closing' rod having an intermediate resilient portion andhaving its opposite ends-ate tached to intermediate points of said levers,

and a' spring having its rear-end connected to said frame and ts forward end to the lower end of the cap-carrying lever.

In testimony'whereof I have signed this specification in the presence of two sub-' scribing witnesses. V

Y LEON ANTOINE DELPEUGH.

Witnesses:

EMILE Lnnnn'r,

H. C. Coxn. 

